Honda Rafaga Speedometer

Tiny
JIMMY1772
  • MEMBER
  • 1995 HONDA RAFAGA
  • 5 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
My '95 Honda Rafaga's speedometer normally operates properly, however sometimes when starting the car it will stick at 20kph and stay there regardless of my speed or whether going forward or reverse for a short time before operating properly. This is also without regard to whether or not the engine is hot or cold. I have also seen it lag and jump at times when both accelerating and decelerating usually at 40-60kph. I have not been able to raise the car to inspect the cable or gear linking to the speedometer but I have been doing some research and read that it may possibly be the speedometer itself. I would like to know what kind of diagnostics I can do to figure out exactly what is causing this problem so that I can repair it.
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Friday, January 21st, 2011 AT 9:49 AM

3 Replies

Tiny
KHLOW2008
  • EXPERT
You need not raise the vehicle to check the Vehicle Speed Sensor. It is located next to the oil filter plugged into the front differential, right side of vehicle. Removing the air filter would allow easier access.

Problem could be a faulty meter cluster. Unplug the VSS connector at engine side and see if problem persists.
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Friday, January 21st, 2011 AT 12:00 PM
Tiny
JIMMY1772
  • MEMBER
Sorry it took me so long to check that out, I had some trouble getting into the auto hobby shop on base. With the VSS unplugged it stays at 0kph. So that would mean either the VSS itself or a frayed wire somewhere right? Is there a way to test the VSS with a multimeter or something?
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Thursday, February 3rd, 2011 AT 12:31 PM
Tiny
KHLOW2008
  • EXPERT
CODE P0500 - VEHICLE SPEED SENSOR (VSS)
1. Turn ignition off. Block rear wheels. Set parking brake. Raise and support front of vehicle. Turn ignition on. Block right front wheel. Slowly rotate left front wheel while measuring voltage between 26-pin ECM connector terminal 26 (Brown/Black wire) and ECM 16-pin ECM connector terminal No. 13 (Orange wire).

2. If voltage does not pulse from zero to 5 volts, go to next step. If voltage pulses from zero to 5 volts, temporarily substitute known good ECM, then retest system.

3. Inspect for open or short in Orange wire between ECM and VSS. Repair as necessary. If wire is okay, replace VSS.
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Thursday, February 3rd, 2011 AT 2:21 PM

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